Quartz family · Collection guide
Black Onyx
Identification clues
Look for a highly polished black surface, sometimes with subtle parallel banding or colour variation.
Mineral facts
True Onyx is parallel-banded chalcedony. Natural black chalcedony is rare, and most commercial Black Onyx is treated.
Care guidance
Use a soft damp cloth and avoid harsh chemicals that could affect dyes or surface treatments.
Look a little closer
Try this observation.
Look closely for parallel banding or subtle colour variation. An even black finish does not tell you whether chalcedony has been dyed.
Traditional meanings & associations
Black Onyx is commonly associated with grounding, protection, steadiness, and self-discipline.
These are cultural or spiritual associations, separate from mineral science. They are not demonstrated health or financial effects.